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Impacts of diffuse radiation fraction on light use efficiency and gross primary production of winter wheat in the North China Plain
Yang, Xiaoya1; Li, Jun2; Yu, Qiang3,4; Ma, Yuchun1; Tong, Xiaojuan5; Feng, Yan6,7; Tong, Yingxiang7
2019-09-15
Source PublicationAGRICULTURAL AND FOREST METEOROLOGY
ISSN0168-1923
Volume275Pages:233-242
Corresponding AuthorYang, Xiaoya(yangxy@nuist.edu.cn)
AbstractThe increase of diffuse radiation fraction (k(d)) has been reported to significantly impact light use efficiency (LUE) and carbon uptake in terrestrial ecosystems. The impact of k(d) on LUE should be considered in crop models to accurately evaluate the effect of radiation changes on crop production. However, the magnitude of the k(d) effect is difficult to quantify because of the complicated interacting relationships among all of the meteorological parameters, as well as the changing effects for various ecosystem types and research sites. Eight site-years of flux data and two years of diffuse radiation data from two field ecosystems in the North China Plain were used to (1) compare the performance of five k(d) models, (2) explore the impacts of environmental factors on LUE and gross primary production (GPP) of winter wheat (Triticum aestivium L.), and (3) quantify the relationships between k(d) and both LUE and GPP of winter wheat. Comparison results showed that the k(d) model developed by Boland et al. performed the best of the five models evaluated. This model was chosen to calculate k(d) in this research. Path analysis show that k(d) was the main factor affecting LUE of winter wheat, explaining up to 55% of the variability in LUE. The relationship between k(d) and LUE was significantly linear (slope of about 0.326 g C mol(-1)). GPP initially increased and then decreased with increasing kd. A moderate radiation condition (k(d) = 0.53) was favorable for increasing GPP. The effect of k(d) on LUE should be added in the LUE module of APSIM-Nwheat to improve simulation accuracy. The results of this study highlight the importance of k(d) in correctly modeling LUE for winter wheat with a crop model and provide quantitative relationships between these two parameters. These relationships will be helpful in improving crop model simulation accuracy under changed climate conditions.
KeywordLight use efficiency Gross primary production Diffuse radiation fraction Radiation partitioning model Winter wheat
DOI10.1016/j.agrformet.2019.05.028
WOS KeywordCARBON-DIOXIDE EXCHANGE ; SOLAR-RADIATION ; ATMOSPHERIC PARTICLES ; WATER-USE ; ECOSYSTEM ; FOREST ; PHOTOSYNTHESIS ; MODELS ; CLOUDS ; TEMPERATURE
Indexed BySCI
Language英语
Funding ProjectNational Natural Science Foundation of China[41730645] ; National Natural Science Foundation of China[31400416] ; Natural Science Foundation of Jiangsu Province[BK20140988]
Funding OrganizationNational Natural Science Foundation of China ; Natural Science Foundation of Jiangsu Province
WOS Research AreaAgriculture ; Forestry ; Meteorology & Atmospheric Sciences
WOS SubjectAgronomy ; Forestry ; Meteorology & Atmospheric Sciences
WOS IDWOS:000480376400020
PublisherELSEVIER
Citation statistics
Cited Times:1[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.igsnrr.ac.cn/handle/311030/68873
Collection中国科学院地理科学与资源研究所
Corresponding AuthorYang, Xiaoya
Affiliation1.Nanjing Univ Informat Sci & Technol, Coll Appl Meteorol, Jiangsu Key Lab Agr Meteorol, Nanjing 210044, Jiangsu, Peoples R China
2.Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, Key Lab Water Cycle & Related Land Surface Proc, Beijing 100101, Peoples R China
3.Northwest A&F Univ, State Key Lab Soil Eros & Dryland Farming Loess P, Yangling 712100, Shaanxi, Peoples R China
4.Univ Technol Sydney, Sch Life Sci, POB 123, Broadway, NSW 2007, Australia
5.Beijing Forestry Univ, Coll Forestry, Beijing 100101, Peoples R China
6.Anhui Inst Meteorol, Key Lab Atmospher Sci & Satellite Remote Sensing, Hefei 230031, Anhui, Peoples R China
7.Showxian Natl Climate Observ, Shouxian 232200, Peoples R China
Recommended Citation
GB/T 7714
Yang, Xiaoya,Li, Jun,Yu, Qiang,et al. Impacts of diffuse radiation fraction on light use efficiency and gross primary production of winter wheat in the North China Plain[J]. AGRICULTURAL AND FOREST METEOROLOGY,2019,275:233-242.
APA Yang, Xiaoya.,Li, Jun.,Yu, Qiang.,Ma, Yuchun.,Tong, Xiaojuan.,...&Tong, Yingxiang.(2019).Impacts of diffuse radiation fraction on light use efficiency and gross primary production of winter wheat in the North China Plain.AGRICULTURAL AND FOREST METEOROLOGY,275,233-242.
MLA Yang, Xiaoya,et al."Impacts of diffuse radiation fraction on light use efficiency and gross primary production of winter wheat in the North China Plain".AGRICULTURAL AND FOREST METEOROLOGY 275(2019):233-242.
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